Willis Reservoir, UT Weather Forecast
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Willis Reservoir Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | FRIDAY |
| Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm |
| Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C |
| POP: 10% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1243 AM MDT Sat Aug 15 2026 

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Willis Reservoir Forecast Discussion
Issued: 450 AM MDT Sat Aug 15 2026
Key Messages
.KEY MESSAGES, Issued 200 AM MDT Sat Aug 15 2026...
- Isolated thunderstorms are expected across southwestern and northeastern Utah this afternoon and evening. Locally heavy rain will be possible with any thunderstorms across southwestern Utah.
- Elevated to locally critical fire weather conditions will occur across central and southern Utah Tuesday into Wednesday.
Discussion
, Issued 1014 P...
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